Medication infusion pump



FIG. 1 is a perspective view of a medication infusion pump, showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof, broken away for ease of illustration; and

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a medication infusion pump, as shown. 